SOLUTION: In California, 50% of all teenagers own a skateboard and 40% of all teenagers own a skateboard and roller blades. What is the probability that a teenager owns roller blades given t

Question 755077: In California, 50% of all teenagers own a skateboard and 40% of all teenagers own a skateboard and roller blades. What is the probability that a teenager owns roller blades given that the teenager owns a skateboard
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
In California, 50% of all teenagers own a skateboard and 40% of all teenagers own a skateboard and roller blades. What is the probability that a teenager owns roller blades given that the teenager owns a skateboard
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P(blades | skateboard) = P(blades AND skateboard)/P(skateboard)
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= 0.4/0.5 = 0.8
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Cheers,
Stan H.
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